Yes. All 42 tools are 100% free with no signup, no ads in your face, and no hidden limits. The core tools will always be free.

Do AHX tools upload my data to a server?

No. Every tool runs entirely in your browser using JavaScript. Your data never leaves your device.

Can I use AHX offline?

Yes. Once the page has loaded, every tool works without an internet connection. AHX is installable as a PWA.

Yes. Remove Duplicate Lines is 100% free with no signup and no usage limits.

No. Remove Duplicate Lines runs entirely in your browser. Your data never leaves your device.

No. Remove Duplicate Lines works in any modern web browser. Just visit the page and start using it.

Remove duplicate lines from any text. Keep first or sort.

Case sensitiveTrim whitespaceSort output

Input

Runs entirely in your browser. No data leaves your device.

Remove duplicate lines from any text instantly. Options for case sensitivity, whitespace trimming, and sorting. Everything runs in your browser.

Format, validate, minify JSON with error highlighting.

Count words, characters, sentences, paragraphs, reading time.

Placeholder text by words, sentences, or paragraphs.

Loading AHX...